The Journey of Flight.pdf - Valkyrie Cadet

Chapter Chapter 11 11 11 - - Air Air Car Carriers Car Carriers
riers
Boeing Boeing Boeing Boeing Boeing 727 727 727 727 727
This is the most successful airliner ever built in terms of numbers. A total of l,831 of these aircraft
were produced, and every air carrier in the free world is currently flying this aircraft. Of the 1,831 727s
built, 1,500 are still flying today. The three engines mounted on the rear of the aircraft and the T-tail are
the unique features of the 727. The first model (727-100) can carry up to 131 passengers and has a
range of about 2,500 miles. The later “stretched” 727-200 can handle up to 189 passengers and has a
range of up to 2,900 miles.
Boeing Boeing Boeing Boeing Boeing 737 737 737 737 737
Boeing Boeing Boeing Boeing Boeing 757 757 757 757 757
Boeing 737
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The 737 is a twin-engine, shortrange
jet transport which entered airline
service in April 1967. Still in production,
the 737 will eventually surpass
the 727 in terms of the number
built. Depending on the model, the
737 can carry from 110 to 190 passengers.
The 737 is attractive to the
airlines because its fuselage is the
same diameter as the 727. This offers
better passenger comfort. This
feature is also attractive because
many parts are interchangeable be-
tween the 727 and 737. The advanced 737s can also operate from runways as short as 4,000 feet, and
some can even operate from unpaved runways. This provides many small communities with jet service
where it was previously unavailable.
Another new, advanced-technology jet for the 1990s is the short-to-medium-range Boeing 757.
This aircraft is being manufactured as a replacement for the older 727s and DC-9s, which are aging.
The 757 is a twin-engine airliner with the same fuselage diameter as the 727. With six-abreast
seating, the 757 can carry 178 passengers in mixed first-class/economy seating or up to 220 in alltourist
configuration.
The 757 has an overall length of 155 feet 3 inches. Its wing makes use of the same advanced
technology used in the 767 and spans 124 feet 6 inches. The advanced flight deck employs the same
technological concepts as the 767 Boeing jetliner.
As a replacement for the DC-9 and 727 aircraft, the 757 is attractive to the largest airline market in
the world—the short-haul market. Currently, 70 percent of all jet passengers in the world fly on trips of
less than 2 hours duration. On these short-duration flights, turnaround time becomes very important.
The 757 is precisely suited for these routes. It offers the same number of seats as the larger trijets, with 65